NASCAR driver Kasey Kahne has apologized for a Twitter rant he made against public breastfeeding yesterday. It escalated into an all-out tweet-flame war when a woman, offended by his comment, tweeted that he was a "douchebag." In response, Kahne called her a "dumb bitch." And that's when shit got real.

It all happened this past Tuesday, when Kahne was apparently out shopping, and he got an eyeful of mom-boob in mid-feeding. "Just walking through supermarket. See a mom breast feeding little kid," he Tweeted. "Took second look because I was obviously seeing things. I wasn't!" Then a second tweet: "I don't feel like shopping anymore or eating."

That's when @KnittingRad piped up, chastising Kahne for being insensitive to the mom's need for feed: "@kaseykahne wow, you're kind of a douchebag, where would you propose that baby eat, the restroom? Would you eat in the restroom?"

Later on, Kahne apologized, and she accepted, and returned an apology for her "knee-jerk" response, via twitter. Then he posted a longer public apology on his Facebook page, which elicited more than 400 responses. PR nightmare, almost averted.